# SCD-1
*missions*

## Specifications
- **operator**: inpe
- **actual launch**: 1993-02-09
- **platform**: scd-bus
- **launch vehicle**: orbital-pegasus
- **current status**: operational
- **orbit type**: near-circular LEO, about 750 km altitude, 25 degree inclination
- **tasking supported**: false
- **current geographic priority**: Brazilian environmental data collection from remote data-collection platforms
- **entity type**: mission
- **last verified date**: 2026-06-21
- **verified by**: agency-doc
- **claim status**: agency-sourced
- **provider**: inpe
- **attributes**: {"operator":"inpe","actual_launch":"1993-02-09","platform":"scd-bus","launch_vehicle":"orbital-pegasus","current_status":"operational","orbit_type":"near-circular LEO, about 750 km altitude, 25 degree inclination","tasking_supported":false,"current_geographic_priority":"Brazilian environmental data collection from remote data-collection platforms"}
- **relevance**: in-scope

## Editorial
SCD-1 is a Brazilian environmental data-collection satellite for relaying measurements from remote data-collection platforms.[^inpe-scd-home][^inpe-scd-mission] It launched on 1993-02-09 on Pegasus and operates in near-circular low Earth orbit at about 750 km altitude and 25 degrees inclination.[^inpe-scd-home][^gunter-scd-1] The mission carries a UHF/S-band data-collection transponder for environmental monitoring platforms, with priority on Brazilian environmental data collection rather than commercial image tasking.[^inpe-scd-mission][^inpe-scd-satellite] SCD-1 has remained operational since launch.[^inpe-scd-home][^gunter-scd-1]

## Compositional position
- SCD-1 --[mission_payloads]--> scd-data-collection-transponder (products)
- SCD-1 --[mission_buses]--> scd-bus (products)
- SCD-1 --[related-topic]--> inland-water (topics)
- SCD-1 --[related-topic]--> weather-nowcasting (topics)

## Sources
- [inpe-scd-home] | INPE SCD-1 mission home page | https://www.inpe.br/scd1/site_scd/scd1/home_scd1.htm | tier=agency-doc | accessed=2026-06-21
- [inpe-scd-mission] | INPE SCD-1 mission and data-collection system | https://www.inpe.br/scd1/site_scd/scd1/missao.htm | tier=agency-doc | accessed=2026-06-21
- [inpe-scd-satellite] | INPE SCD-1 satellite technical characteristics | https://www.inpe.br/scd1/site_scd/scd1/osatelite.htm | tier=agency-doc | accessed=2026-06-21
- [gunter-scd-1] | Gunter Space Page: SCD 1 | https://space.skyrocket.de/doc_sdat/scd-1.htm | tier=community | accessed=2026-06-21

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Source: https://eo-atlas.org/missions/scd-1
Maintainer: SpectraWorks B.V. (CC-BY 4.0)